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131011113311 = 1343234366929
BaseRepresentation
bin111101000000011011…
…1101111000101011111
3110112011101112010022222
41322000313233011133
54121302321111221
6140104034455555
712315402042401
oct1720067570537
9415141463288
10131011113311
115061a3a3571
12214834345bb
13c47b503230
1464ab8aab71
15361b9dc9ab
hex1e80def15f

131011113311 has 8 divisors (see below), whose sum is σ = 144370028880. Its totient is φ = 118120931712.

The previous prime is 131011113293. The next prime is 131011113323. The reversal of 131011113311 is 113311110131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131011113311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131011113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011113341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117182906 + ... + 117184023.

It is an arithmetic number, because the mean of its divisors is an integer number (18046253610).

Almost surely, 2131011113311 is an apocalyptic number.

131011113311 is a deficient number, since it is larger than the sum of its proper divisors (13358915569).

131011113311 is a wasteful number, since it uses less digits than its factorization.

131011113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234366985.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 131011113311 its reverse (113311110131), we get a palindrome (244322223442).

The spelling of 131011113311 in words is "one hundred thirty-one billion, eleven million, one hundred thirteen thousand, three hundred eleven".

Divisors: 1 13 43 559 234366929 3046770077 10077777947 131011113311